Re: PANTONE and GRACoL2006
Re: PANTONE and GRACoL2006
- Subject: Re: PANTONE and GRACoL2006
- From: Roger Breton <email@hidden>
- Date: Tue, 06 May 2008 07:22:32 -0400
Thank's Henk,
That's not quite the answer I was looking for but that's the sad reality,
today, nevertheless.
> Pantone has 2 different version of their color guides.
> One is for international use and is based on US standards but nobody
> knows what these standards are! Pantone created their version
> of the standard and the values are specified in the CMYK process guide.
> For Europe they made the EURO version of their coated and uncoated process
> guides.
> They are (partly) based on ISO 12647-2 and have the following specs.
> Densities: K = 1.70 C = 1.50 M = 1.45 and Y = 1.00
> Dot gain (TVI) at 24% = 12%, at 50% = 16% and at 75% = 12%.
> Gray balance values quarter = 25, 19 and 19%, midtone = 50, 40 and 40%.
> Three-quarter = 75, 64 and 64%.
> The differences in TVI can be 3% up and down.
> The DeltaE differences between 2 pages in the same guide 3.
> The differences between old and new guides are sometimes deltaE 12
> with substantial differences in hue.
> That's why they warn the user in advance for aging, fading and the differences
> between old and new versions and between European and American versions.
> As long as we use different characterization data in US and elsewhere the
> Pantone
> organization is not able to make just on version for coated (IC instead of
> C and EC)
> and one for uncoated.
> Regards, Henk
>
> At 21:12 5-5-2008 -0400, Roger wrote:
>> Would anyone have any suggestions on how to re-concile those two? A quick
>> check on PANTONE's site still does not turn any GRACoL-like of G7-compatible
>> swatch books.
>>
>> Roger Breton
>
Roger Breton
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